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Detect GitOps mode from ArgoCD Application YAML file #2

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Detect GitOps mode from ArgoCD Application YAML file #2

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48 changes: 35 additions & 13 deletions action.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -121,21 +121,43 @@ runs:
working-directory: ${{ inputs.working_directory }}/${{ inputs.overlay_dir }}
run: |
echo "Detecting deployment mode..."

BUILD_RESULT=$(kustomize build)
MANAGED_BY=$(echo "$BUILD_RESULT" | grep "app.kubernetes.io/managed-by:" | head -n1 | sed 's/.*app.kubernetes.io\/managed-by:\s*//' | tr -d '[:space:]' || true)

echo "managed_by=$MANAGED_BY" >> $GITHUB_OUTPUT

if [ "$MANAGED_BY" = "argocd" ]; then
echo "mode=gitops" >> $GITHUB_OUTPUT
echo "✓ GitOps mode detected (ArgoCD)"
elif [ "$MANAGED_BY" = "flux" ]; then

# Primary detection: check for ArgoCD Application YAML file (single source of truth)
# Overlay dir is e.g. deploy/overlays/nurture-prod, ArgoCD dir is deploy/argocd/
ARGOCD_DIR="../../argocd"
ARGOCD_FILE="${ARGOCD_DIR}/${{ inputs.environment }}.yaml"
ARGOCD_FILE_YML="${ARGOCD_DIR}/${{ inputs.environment }}.yml"

echo "Checking for ArgoCD Application YAML at: $(cd "$ARGOCD_DIR" 2>/dev/null && pwd || echo "$ARGOCD_DIR [not found]")/${{ inputs.environment }}.yaml"

if [ -f "$ARGOCD_FILE" ] || [ -f "$ARGOCD_FILE_YML" ]; then
echo "managed_by=argocd" >> $GITHUB_OUTPUT
echo "mode=gitops" >> $GITHUB_OUTPUT
echo "✓ GitOps mode detected (Flux)"
echo "✓ GitOps mode detected (ArgoCD Application YAML found)"
else
echo "mode=kubectl" >> $GITHUB_OUTPUT
echo "✓ Direct deployment mode (kubectl)"
echo "::notice::ArgoCD Application YAML not found. Falling back to kustomize build label detection."
# Fallback: check managed-by label in kustomize build output for backwards compatibility
if ! BUILD_RESULT=$(kustomize build 2>&1); then
echo "::warning::kustomize build failed during GitOps detection. Defaulting to kubectl mode."
echo "::warning::Build error: $BUILD_RESULT"
echo "managed_by=" >> $GITHUB_OUTPUT
echo "mode=kubectl" >> $GITHUB_OUTPUT
else
MANAGED_BY=$(echo "$BUILD_RESULT" | { grep "app.kubernetes.io/managed-by:" || true; } | head -n1 | sed 's/.*app.kubernetes.io\/managed-by:\s*//' | tr -d '[:space:]')

echo "managed_by=$MANAGED_BY" >> $GITHUB_OUTPUT

if [ "$MANAGED_BY" = "argocd" ]; then
echo "mode=gitops" >> $GITHUB_OUTPUT
echo "✓ GitOps mode detected (ArgoCD, via managed-by label fallback)"
elif [ "$MANAGED_BY" = "flux" ]; then
echo "mode=gitops" >> $GITHUB_OUTPUT
echo "✓ GitOps mode detected (Flux)"
else
echo "mode=kubectl" >> $GITHUB_OUTPUT
echo "✓ Direct deployment mode (kubectl)"
fi
fi
fi

- name: Set deployment mode
Expand Down